美國一共有幾多個手機台？

最少有六大間:
AT&T (http://www.wireless.att.com/home/)
T-Mobile (http://www.t-mobile.com/)
Verizon Wireless (http://www.verizonwireless.com/b2c/index.html)
Sprint / Nextel (http://sprint.com/index.html)
Alltel (http://www.alltel.com)
Metro PCS (http://www.metropcs.com/)

希望幫到你